[EWCP]-11-27-11 Drivetrain Design

[thefro526]

Originally Posted by Karthik

Speaking of the Kitbot on Steroids and drivetrain design, we just released a new presentation on both:

http://www.simbotics.org/files/pdf/d...ain-design.pdf

Check it out. More goodies, including an updated video with detailed instructions on how to build the KoS are coming soon!

Karthik,

Is there a way that you/we/everyone can make sure that every team sees this? I've come to the conclusion that the KoS is more competitive than about 85% of the drivetrains in FRC...

[rsisk]

Originally Posted by thefro526

Karthik,

Is there a way that you/we/everyone can make sure that every team sees this? I've come to the conclusion that the KoS is more competitive than about 85% of the drivetrains in FRC...

I just shared it with about 2,000 people on the FIRST Robotics LinkedIN group. Next stop, FIRST Senior Mentors...

[pfreivald]

Great presentation on drive trains, Karthik! I'm sharing it with our rookies right now.

[Karthik]

Originally Posted by Madison

This is a fantastic presentation, Karthik. How long does it take Ben to give it? I have been struggling to cover drive design in a 45 minute session and if y'all can give such a comprehensive look at it in that same time, I'm retiring.

Ben gave this presentation a couple weeks ago to a group of local Ontario teams. It took about 1:40 followed by twenty minutes of the 1114 kids assembling the KoS. Not all topics were covered in detail, doing so would probably make it a 2:30 presentation.

Originally Posted by thefro526

Karthik,

Is there a way that you/we/everyone can make sure that every team sees this? I've come to the conclusion that the KoS is more competitive than about 85% of the drivetrains in FRC...

We're working on ways to get these presentations out to a wider audience in easy to use formats. I'll have more details in the next couple of weeks. But like I said earlier, we'll have videos, step by step instructions, CAD models and a BOM.

[Ken Patton]

Originally Posted by Madison

Those that spring to mind immediately include 157 in 1999....

The 157 bot with articulated drive from that era (2000 I think?) was awesome.

[Ether]

Originally Posted by Karthik

Speaking of the Kitbot on Steroids and drivetrain design, we just released a new presentation on both:

http://www.simbotics.org/files/pdf/d...ain-design.pdf

Check it out.

There's a major "oops" on Page 47. The force required to move the rubber block is 50 lbs, not 1610 lbs.

[Ian Curtis]

Originally Posted by Ether

There's a major "oops" on Page 47. The force required to move the rubber block is 50 lbs, not 1610 lbs.

Slugs strike back!

I really really like that factor of merit chart. I hope that gets into as many hands as possible. Even if people don't agree with the numbers, it is a great way to frame any discussion.

[Andy Baker]

Originally Posted by Ken Patton

The 157 bot with articulated drive from that era (2000 I think?) was awesome.

It was 1999. I think that the announcer called it a "daunting display of dexterity". The beginning of this video shows a good view of their articulated wheels.

This was back when contact outside the bumper zone was very normal.

Andy B.

[Brandon Holley]

Originally Posted by Andy Baker

It was 1999. I think that the announcer called it a "daunting display of dexterity". The beginning of this video shows a good view of their articulated wheels.

This was back when contact outside the bumper zone was very normal.

Andy B.

Andy do you recall what team is playing with 157 in that match? I cant seem to find a team # in the video.

I'm only curious because they seem to be sponsored by the company I work for, and this could be a fun video to pass around the office.

-Brando

[Andy Baker]

Originally Posted by Brandon Holley

Andy do you recall what team is playing with 157 in that match? I cant seem to find a team # in the video. I'm only curious because they seem to be sponsored by the company I work for, and this could be a fun video to pass around the office.

-Brando

Oh, yes, I recall.

The other team is 131, Chaos, from Manchester NH. I believe that Kristen Kelso was a student on the team at that time, and of course Dave and Nancy Kelso were mentors (whom I did not know yet). One of their mentors was very frustrated that no penalty was called against team 45 for pushing 157 off the puck during that match.

When we (45) went out to Rumble at the Rock that following summer, team 131 was there and I was weary about running into this frustrated mentor. I thought I saw this mentor in the pits, and I did not say anything to him. The following winter out at kickoff, I approached him to address his concerns. It turned out that the guy I thought was the concerned engineer was the very understanding teacher, Mr. David Kelso, and he told me that he loved the match (except for the fact that his alliance lost) and the other frustrated mentor was wrong. And so began a wonderful friendship between my family and the Kelsos. I am sure that many other FIRSTers have great experiences with all of the Kelso family.

Speaking of Rumble at the Rock, that reminds me of another question for Dr. Joe: What was the cheer he led while wearing some ridiculous costume during 1999 Rumble?

Andy B.

[JackS]

This question is for Joe J and Aren (and Andy too):

As a "rookie", will you build a kitbot? Being in the unique position of having both experience and rookie students, how do you balance sharing your own knowledge of concepts with letting students learn lessons on their own?

[Andrew Schreiber]

In the spirit of this thread I'd like to share a little project that the EWCP would like to share with you. On our website we have created a page that recreates the wonderful JVN Single Speed DT calculator. If there is interest we will work on recreating other tools in the browser. It is available at http://ewcp.org/calculators/gearbox/single/

Simply drag the blue text items to change their values and watch the outputs change.

Enjoy

[IndySam]

Can you guys present the recorded episodes in something other than iTunes please?

I can't save the broadcasts for later listening or pause or rewind if I want to re-hear something without iTunes and I don't want to have to install it on my computer. Not to put to fine a point on it but I hate iTunes.

[thefro526]

All of the Podcasts are available for download via Talkshoe: http://www.talkshoe.com/tc/98466

Right Click the download icon next to the cast and you can save it as an MP3 file.

(Can totally understand your hate of iTunes)

[Andrew Schreiber]

Originally Posted by thefro526

All of the Podcasts are available for download via Talkshoe: http://www.talkshoe.com/tc/98466

Right Click the download icon next to the cast and you can save it as an MP3 file.

(Can totally understand your hate of iTunes)

Actually, if you prefer RSS feeds we publish that too at http://recordings.talkshoe.com/rss98466.xml (I lose the url all the time)


For reference, anyone who wants things in iTunes, all it takes is an rss feed and an apple ID. There is some special formatting in the xml to get it to parse into itunes but overall it is pretty simple. Talkshoe published those automatically for us. If you have more questions about the tools we use just shoot me a PM, I'm more than willing to discuss any of it.

Edit: Continuing my babbling about the website. ewcp.org is the EWCP Blog, there will be posts about all our casts there as well. If you just want to see the casts the link is http://ewcp.org/blog/categories/cast/